The inputtext "colaff" has to be filled with one character. I fill it with one character but I can't validate my form, I have a message "colaff length should be between 0 and 1". If I put a javascript alert to verify the value and length of the input, I have just one character, no hidden character seams to be added to what I typed.

I really don't understand what's wrong, do you any idea for me please?